Calculating-machine.



W. l. FABMN.

CALCULATING MACHlNE.

APPLICATION FILED mwzl. I9I5.

1,265,440. Patented May 7,1918.

8 SHEETS-SHEET I.

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. J. FABIAN.

CALCULATING MACHINE.

APPLICATION men mwzx. 191s.

Patented may 7,1918.

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Ina/8x60 Zlz'amz J [21% fan W. I. FABIANF CALCULATING IMMUNE.

AI'PLICATIOI FILED IN 2|. "l5. 1,265,440. Patented May 7,1918.

8 SHEETS-SHEET 3.

71/; z Inventor: j V @Qtm William Jia&z'am

W. J. FABIAN.

V CALCULATFNG MACHINE.

APPLICATIGII man mvzl, ms.

Patented May 7, 1918.

a SHEETS-SNEET 4 Wnein'efl: [2e yang/*2.- Wfi .Qkm William J [Mann 9 kMM 1% S W. .l. FABIAN. CALCULATING MACHINE. APPLICATION man an 21. l9|5-fnyazaan- William JF&lan

W. J. FABMN.

CALCULATING MACHINE. APPLICATION FILED mum. m5.

Patented May 7,1918.

3 SHEETSSHEET 1- jVl-g 8/515 [7? W992 (02 Quin William Jf a%ian W. l.FABMN.

CALCULATING MACHINE. APPLICATION men pm 2 ms.

1,265,4140. Patented May 7,1918.

8 SHEETS-SHEET B- ylllzllllllllllllllrllm 1N 3L. mm 76mm .1 {rahwyfgUNITED STATE$ PATENT OFFICE.

CALCULATING-MACHIN E.

Specification of Letters Patent.

Patented May '7, 1918.

Application filed May 21, 1915. Serial No. 29,517.

- To all whom it may concern:

Be it known that I, W'ILLIAM J. FABIAN, a' citizen of the United States,and resident of Evanston, county of Cook, and State of Illinois, haveinvented certain new and useful Improvements in Calculatin -Machines, ofwhich the following is a speci cation, and which are illustrated in theaccompanying drawings, forming a part thereof.

The invention relates to machines for making arithmetical computationsand more particularly to those having provision for printing the itemsand the result of the computation from the same type. The object of theinvention is to provide a calculating machine which shall be of simpleconstruction and capable of performing a variety of operations witha-minimum of manual manipulation.

In the accompanying drawings,

Figure 1 is a plan view showing a calculating machine embodying thefeatures of improvement provided by the invention,

Fig. 2 is a longitudinal vertical sectional view of the same taken ontwo planes indicated by the broken line 22 on Fig. 3,

Fig. 3 is a plan sectional view taken on the line 33 of Fig. 2,

' Fig. =1 is a plan view of the machine with the cover removed and withthe side walls of the case and the stems of certain of the controllingkeys shown in section, some parts being omitted for simplicity ofillustration,

Fig. 5 is a detail front elevation with the parts of the case andcertain of the operating elements shown in section and with some of theparts broken away,

Fig. 6 is a side elevation showing one of the accumulator wheels,

Fig. 7 shows an intermediate supporting frame and some parts of themechanism ad jacent thereto in side elevation, a pair of operatingshafts and a detail of the case being shown in section,

Fig. 8 is a detail view of the key-board and some of the associatedmembers, partly in section,

' Fig. 9 is a detail rear elevation of the mechanism within the case, apart of the floor plate being shown in section,

Fig. 10 is a detail side elevation showing some of the controllingelements of the mechanism, the supporting shafts therefor and a part ofthe case being shown in sectlon,

Figs. 11 and 12 are detail views of the item wheels and some of thesupporting members, Fig. 11 being partly in section on the line 1111 ofFig. 12, and Fig. 12 be ing partly in section on the line 12-42 of Fig.11,

Figs. 13, 14 and 15 are detail side views drawn to an enlarged Scale andshowing the construction of different portions of the rims of the mainwheel segments employed in the machine, some of the parts being brokenaway in Figs. 14 and 15,

Fig. 16 is a detail side View showing the parts employed for supportingand operating two of the platens against which the printing isaccomplished, with a detail of the floor plate appearing in section, and

Fig. 17 is a front elevation showing the manner in which the apparatusprovided by the invention may be associated with a typewriting machinefor permitting the conjoint use of the two machines for billing and thelike.

In the particular form of construction selected for illustration theoperative parts are principally inclosed within a case generallydesignated and comprising a floor plate 51, front and rear end walls 52,53, the two side walls 54:, and 55, and a cover plate 56. The floorplate 5-1 is represented as being provided wlth a recess 57 for thereception of the platen roller 58 of an ordinary typewriting machine. Awell known form of typewriting machine is shown in outline at 59 in Fi17.

When the calcu ating machine provided by the invention is to be used inconjunction with a typewriting machine, as 59, a. stand 60 is desirablyemployed. As shown the stand is provided with seats 61 and 62 forsupporting the typcwriting machine 59 and the case 50 of the calculatingmachine in suitable relative positions for the endwise movement of theplaten 58 of the typewriting' machine into the recess 57 of the floorplate 51 from one side of the case 50. pair of main side frames 63 and64, a pair of intermediate frames 65 and 66 and a pair of brackets 67and 68, all rising from the lioor plate 51, provide the principalsupports for the parts within the case 502 In addition to havingprovision for printing both the iteins and results of thecornputationsagainst the platen, as 58, of a typewriting machine, the apparatuspreferably also includes means for printing the, items and results upontwo record strips, as (39 and 70. These record stripsturn over theplatens which are shown at'i'l and 72, respectively, and both of whichare supported outside of the case 50, as by the extension of thebrackets 07 and 68 through an opening 73 in the rear wall 53. The platen71 extends between and is directly supported by the brackets 67 and-68.The platen 72, on the other hand, is mounted between a pair of crankarms 7 1 and 7 5 of a rock shaft '76, which in turn, extends between andis journaled adjacent its opposite ends in the brackets 67 and 68. p

The record strips 69 and 7 0 may be sup plied from any convenientsource. In the arrangement shown, the record strip 70 is supplied to theplaten72 from a spool 77. This spool is removably journaled between theouter end portions of the brackets 67 and 68. The machine is alsosupplied with a set of item wheels 78 and accumulator wheels 79, both ofwhich are visible through openings, as 80 and 81, in the front wall 52.The actuation of the machine may be accomplished from an operatinghandle 82 which is exposed at one side of the case 50. At each operationof the machine this handle is manually swung downwardly and forwardly.As the handle is idle during its return movements, the movement of thehandle in this direction is conveniently accomplished by a spring, as291. (See Fig. 3.)

The drawings show the machine equipped with eighty-one numeral keys 83.These are arranged in nine rows, as 84, 85, 86, 87, 88, S9, 90, 91 and92. A blank key 93, for correcting errors, is associated with each ofthe said rows of numeral keys 83. To proride for the operation of themachine for accomplishing several different results there is also aplurality of controlling keys 9 1, 95, 96, and 97. These last mentionedkeys are conveniently marked to indicate the character of the operationfor which they are provided. As shown, the key 94 is marked R forrepeat, the key 95 T for total,

the key 96 ST for subtotal and the key 97 S for subtract.

All of the keys 83 and 93 have stems marked 100 and 100 respectively.These key stems slide vertically through the cover plate 56 and througha supplemental plate 112' which is supported below and spaced apart fromthe cover plate 56, as by brackets 111. A separate elevating sprin 98 isassociated with each of the numeral keys 83 and blankkeys"93. As shown,each elevating spring 98, reacts between the under side of the coverplate 56 and a stud 99 which is fixed in the stem,,as 100 or 100, of thecorresponding key.

The stems, as 101, 102, 103 andlOfi of the controlling keys 94,95, 96and 97 also slide through thecoyeiuplate 56. Each of these key stemsextends downwardly through the chamber of the case 50, in front of thesupplcn'iental plate 112, and telescopically enters the bore of atubular guide lug 105.

The guide lugs 105 are all formed upon a common bracket plate 106 whichis secured against thefioor plate 51 of the case. A spring 107 15 housedwithin thebore of each of the tubular guide lugs 105 and reacts betweenthe floor plate 51 and the lower end of the corresponding key stem 101,102, 1103 or 104 for elevating the corresponding rey.

A latch mechanism for retaining each of the numeral keys 83 in depressedposition and for preventing the depression of a second numeral key 83 inany of the rows 81 to 92, is desirably provided. To this end anoscillating channeled locking plate 108, rotated in one direction by aspring, as 290, is associated with each of the said rows of numeralkeys. These locking plates extend between and have their opposite endspivotally mounted in bars 109, 110 (Fig. 2). The bars 109 and 110 extendtransversely beneath the cover plate 56 in front of all of the numeralkeys 83 and in rear of the blank keys 93, respectively. They aresupported by being secured against thebraekets 111.

The stem 100 of each of the numeral keys 83 has a plurality of lateralnotches 113, 114 and 1 15, (Fig. 7). The notches 113, 115 are of thesame depth. The notch 113 15 so formed as to provide the key stem withan oblique downwardly facing cam shoulder 116. Similarly, the notch 114serves to provide the key stem with upwardly and downwardly facingabrupt shoulders 11? and 118, the notch being deeper adjacent thedownwardly facing shoulder 118 than ad ]acent the upwardly facingshoulder 117. The notch 115 is so formed as to provide the key stem withan abrupt downwardly facing shoulder 119.

Upon the depression of a numeral key 83 keys in the same row.

in any row,' the obli" ue' dow'n'wardly facing cam shoulder-1161) thestemof =the depressed -key"engages 'the -lower edge 120 of thecorresponding locking plate 108iand swings the lockin plateupon its axisto bring the upper-e go", as 12l'bf the'locki'ng plate into engagementwith the 'downwardly 'facin'g abru v shoulder "118. of the stem 100 ofeach dfthe -remainingnumeral The depression of a second key 5 in' thesame'j rovv without" first depressing thecorrespondin blankfke'yg 93, isaccord ngly "prevented. M As. theoblique a cam sh0ulder 116of"the;stem"of the de' pressed key passes below the lower edge} 120of't'he locking plate 118, the spring rotation of the plate causes thisedge to be enga ed with theul'pwardly facing abrupt s oulder 117 ;forolding the'iiey in depressed position-butjwithont disengag ing the upperedge 121 of the locking la w 108 from the downwardly facing shou ders118 of the remaining key stems. v100 in the same row?"- t '1' :9 When anumeral key 83 in any row has been improperly dc'ipr'essed, 'it a iselevated and thesubsequent"depression of any numeral key 83 the same rowis permitted? by pressing the corresponding blank key 93. "For-this puroseaf palr' of lateral notches=122- and 123 are formed in thestemf 100?of eaoWblahk key 93. w Each 'notch"1 23 is so formedes'toi rovide thecorresponding" key stem 100 'Wi' lien obli ue downwardly fncin g camshoulder'124, pen the de'p'res' sion ofthe blank'lrey 93, the obliquecard shoulder124 of' its' stem 100, engages with" the lower edge 120 ofthe corresponding locking'plate 108 and swings the lockin plate upon itspivots to disengage the sai lower edge 120 of the plate from th'e up-\vardly facing shoulder 117 of the stem 100 of any depressed key 83 inythesame row. The depressed numeral key is accordinglyelevated by itsspring 98 and upon the re lease of the blank key 93,-the locking plate108 is rotated by its spring 'to-disengage' the upperedge 121 of theplatezfrom the downwardly facing shoulders118 of the stems of theremaining'nnmeral keys in the same row." iit it Separate sets oftype/generallydesig liiltQCl 125, 126,and 127, respectively, :arepreferably employed for rinting a ainst the platens 58, 71'and 72. hetype 0 each set comprises nine rows of ten characters each and the 'tencharacters in the correspondingrows of all of the sets are mounted forsimultaneous movement. As shown,' nine wheel segments designated, 128,129, 130. 131,132,433, 134, 135, and'135, are provided for supportingthe type. These wheel segments are mounted for rotation about a commonaxis as by being pivotally a movable actuatin supportedfi'in'al-ineinent on a transverse shaft 136.- This-shaft has its opposite endsjournaledfin the -'sideframes 63 and 64.

Each-Wheel segment 128'to 135 is formed with-rim sections 137, 138, and139 upon Whichthe corre ponding=type0f the three sets 125, 126* ''and'127 are respectively mounted. k oir'rth friin section 140 formed uponeachof: the'avheel'segments'128 to 135 serves *for carrying a set ofsliding pins 141 and a; set of yielding' ge'ar teeth 142. n Each rimsectio11-'1 4() is carried-by anarm 143 and themns 1143 of the severalwheel segments are *laterally* ofi' set in differing amounts. Thisarrangement permits the several rows of characters' in each of thesets-of rtypeg 125; I26, and 127 to move in p'lane's-whioh-arerelatively close together while 'tlie-slidingi'pins 141 and pawls 142 oftheseveml- -wheel segments are more \vide'lyiseparated Thespacing of thepins 141 ofthe 'iseveral wlieel segments 128 to 1351533'therebymmranged'to correspond with ihe spacing of thelseveral rows 84to 92 of the numeral-keys 1 5 In thevoperation of the machine, selectedcharacters from f :the l several sets of type 125, name 127 are broughtto printing p'ositionMi ni frontn ofi' tlie corresponding platens-58 N71and: 72;:by angular movement oi'z the wheel segments 128 to 135*.Normally each of theselwheel segments occupies la 'positibn in vthieh-the zero characters: 144; 196; and lQ'L- of the three sets of type 125,126, and 127,-'are positioned in front: of the correspon'ding platens.Accidental displacement of each wheel segment, as 128; fronrthisposition is pre- Yentedbyproviding the rim section 139 of each segmentwith a notch 145 which is yieldingly engaged by a leaf spring 146 (Fig.2.) This leaf spring 146 is convenientl y supportedby bei'ng fsecurcdagainst the underside ofa tie r0614? which extends bet-Ween and connectsthe side frames Gilead-64; H

*Movement of the Wheel segments 128 to 135,- is accomplished by aselective depressiorvof the pll'lS '1'41,=l1l1d the engagement of"211111148 With the depresse'd p'ins. '-As s own; the numeral keys 83serve for-depressing the pins 141 into the ath- 0f the actuating arm148. i The ins 141 upon each wheel segment 128 to 135 are accordinglyalined'with the lower ends of the stems 100- of the keys 83 in one ofthe rows 84 to 921 For supporting the pins 141 the' adjacent part of therim section 140 of each wheel segmenflas 128 is composed of a pair ofparallel plates 149, 150 (Fig. 15) which-are laterally spaced apart toslidin ly receive'thepins'lllbetween them. T is relative position of theplates 149, '150 is maintained by means of a plurality of spacing blocks151 which unite the marginal pontions of the plates, between the pins141. Each pin 141 is held against accidental displacement in each of itstwo positions by locating an expansion spring 152 in the space inclosedby the side plates 149 and spacing blocks 151, alternately between eachtwo adjacent pins. Two notches 153 and 154 are provided upon each pinfor engagement with the corresponding sprin 152 in thetwo 'positions ofthe pin. Pre erably the pins 141 have Theads 155. These heads limit thedownward movement of the pins and overhang. the side of thecorresponding wheel segment, as 128 for engagement with a movablerestoring bar 156.

The restoring bar 156 is movably held against one side of the rimsection 140 of the corresponding wheel segment, as 128. As show n, thetwo ends of the restoningbar- 156 are respectively united with aswinging link 157 and with a lever 158, both of which are in turnpivotally secured against the adja cent side plate, as 150 ofthecorresponding rim section 140. The lever 158 extends rearwardly beyondthe end of rim section 140 of the corresponding wheel segment, as 128,and into the path of the stem 100 of one of the blank keys 93.Depression of a blank key 93 accordingly serves to restore any depressedpin 141 of the correspondin wheel segment, as 128, in addition to per'orming the fimction already described of permitting the restoration ofany depressed numeral-key 83, in the same row, as 84.

Upon each forward movement of the actuating arm 148, each wheel se ment128 to 135 upon which a pin 141 as been (1 pressed, is moved through asufficient distance to bring the depressed in against a fixed stop rod159, (Fig. 4). he wheel segments are then firmly held a ainst movementby the engagement of t e depressed pins 141 between the actuating arm148 and the stop rod 159 while printin is accomplished from the type125, 126 anl 127. The stop rod 159 extends transversely through thewheel segments Elite 135 below their rim sections 140 and in rear ofarms 143. The stop rod is sup ends upon the said rames 63 and 64. Itserves to limit the return movement of the wheel segments 128 to 135" byengagement of the arms 143 with said rod.

The actuating arm 148 extends between and is rigidly supported-at itsopposite ends upon a pair of crank arms 160 and 161. These crank armsare fixed upon the shaft 136, each crank arm being located just insideof the correspondin side frame 63, 64. The rotation of the sha t 136 forswinging the crank arms 161 and moving the actuatin arm 148 is oneof theoperations accom phshed upon the forward movement of the operatinghandle 82. As shown, this operatorted at its opposite r inghandle isprovided with a tubular. hub founedzinetwo'sections 162-.and-163. Thesehub sections are rotata 1y. connected by providing the outer section, as162 with studs 1.64 which enter notches formed in. the adjacentend ofthe inner section, as 163. Both of the tubular hub sections 162, 163 ofthe operating, handle82'are supported by being sleeved upon a fixedstud. 166. This. stud has one end fixed in the intermediate frame member66. It projects outwardh. therefuomthrough-the side frame 644111 theadjacent' side wall 55 of the case 50. The hub section 162 extendsloosely through the adjacent side wall 55 of the case and through theside frame 64, in the latter of which it has a-bearingiv to provideanadditional support for the operating handle.

Movement of the operatinghandle 82 is transmittedsto aitrain of gears167, 168 169, 170, 171 and 172. These gears are all of uniform size andeach is turned through one complete revolution at each operation of themachine. The ear 167 is fixed upon a shaft 173. (Fig. 9). This shaftextends through and is journaled in the intermediate frames (i5'and 66,with each end of the shaft projectingfsomewhat beyond the adjacent framemember. The gears 168 and 169 and 171 are idle ears serving merely totransmit motion to-ot er gears in the train. Each is accordinglyjounnaled. upon a stub shaft, as 174, which is supported upon andrejects inwardly from the intermediate rame member 66. The gear 170 isfixed upon a cam shaft 17 5which extends through and is journaled inallof the frame members 63, 64, 65 66.

The cam shaft 175 is supplied with a cam 182 foeturning the shaft 136 toswing the actuating arm 148. As shown, a crank arm 183 is formedintegral with the crank arm 161- and projects below the shaft 136. Thiscrank arm carries a cam roller 184 for cooperating-with the cam 182. Thegear 172 is fixed upon a cam shaft 176. The cam shaft 176 extendsbetween and is 'ournaled in the frame members 63 and 66 eyond theforward endof the frame member 65, (Fig. 3).

Themeansprovided for transmitting movement from the operating handle 82to the gear 167 comprises a curved gear segment 177 (Fig. 2) and apinion 178 (Fig. 9). The gear segment 177 is formed integral with theinner hub section 163 of the operating handle 82. The pinion 178 isloosely mounted on the shaft 173 and meshes with the gear segment 177 atall times. This pinion is so proportioned in size with reference to thelength of the gear segment 17 7 that the pinion is turned through anangular distance slightly in. excess of one complete revolution at eachmovement of the operating handle. The rotation of the pinion 178 duringthe forward movement of the 0pcrating ;handle 82 is communicated to theratchet disk 180 fixed upon the shaft 173 adjacentthe pinion and havinga sin le ratchet tooth 181. The movement of t e pinion 178 in excess ofone revolution insures that the pawl 179 will pass over the ratcbettooth181 of the disk 180 during the return stroke of the operating handle 82.

Inl order that the shaft 173' shall be broughttorest in a definiteposition at the completaonof one revolution after the engagement of thepawl 179 with the ratchet tooth 181', a suita lestop mechanism isdesirably provijded As shown, the ratchet disk 180 is formed with anannular enlargem'ent209 (Fig. 9). This enlarged portion of th'edisk 180is provided with a radially projecting stop lug 210. The stop lug 210.isso positioned as to be engaged with alateral projecting stop lug 211formed on the gear segment 177 at the completion of the forward strokeof the operating handle 82.

To insure that the operations of the machine shall proceed in theirproper order, proi'isioni's'preferably made for preventing any 'iturnmovement of the operating hanille encept upon the completion of itsforward (stroke; As shown. a stationary ratchet bar"185(I'-ig. 4) havingforwardly facing ratchetleeth, is secured against the frame member 64upon the inside. This ratchet bar cotiperates with a pawl arm 186. Forthis purpose the pawl arm 186 is formed with a laterally projecting head187 having a downw'ardlyand forwardly facing oblique cam surface 188(Fig. 2). The pawl arm 186 is connected with a crank arm 189 whichswings. with the operating handle 82. As

shown the crank arm 189 is provided with a hub 190 which fits upon theouter hub section 162 of the operating handle 82 and is secured theretoin angularly adiusted position, as by a set screw 191 (Fig. 3).

\Vhen the parts are in the position of rest (illustrated in Fig. 2). thehead 187 of the pawl arm 186 is located beyond the rear end of theratchet bar 185 and rests upon a horizontal shelf 192 which is formed uon the side of the frame member 64. A eaf spring 193 is secured againstthe under side of the ratchet bar 185 and normally extends lownwardlyand rearwardlv therefrom to a point beyond the rear end of the ratchetbar 185. At the beginnin of the forward stroke of the operatin han le82, the oblique cam surface 188 of t e head 187 of the pawl arm 186 isengaged with the rear end of the leaf spring 193and the pawl arm isthereupon lifted by a cam action to a position above the ratchet bar185. The forwardly facing teeth of the ratchet bar 185 accordinglyprevent any return movement of the operating handle 82 until the head187 of the pawl arm 186 has passed beyond the forward end of the ratchetbar. The pawl arm 186 then falls to a position in which its head restsuponthe horizontal shelf 192. During the return movement of theoperating handle 82, the head 187 slides upon the shelf 192 and movesunder the ratchet bar 185, the leaf springl93 yielding upwardly topermit the head pf'the pawl arm to pass.

In the arrangement shown, printing from the sets of type 125 and 126 isaccomplished by. the operation of hammers 194 and 195, respectively,against the type which are alined withfthe corresponding platen 58 or71. The type characters, as 196, (Fig. 14)

of these sets are accordingly mounted for ally separated parallel plates198, 199. be-

tween whichthe type character, as 19 6. is

slidingly mounted. Springs, as 200, insure the return of the typecharacters after each -movement of the corresponding hammers,

as 195. These springs are conveniently located between the two sideplates 198 and 199 of which the corresponding rim section, as 138, iscomposed. As shown, a spacing block 201 is fixedin position between theside plat's,'as 198 and 199 in front of the spring and the spring reactsbetween this block and a laterally projecting shoulder 202, formed uponthe corresponding type character, as 196.

The hammers 194 and 195 are arranged in sets, each set including anumber of hammers 'equal to the number of wheel segments 128 to 135. Thehammers 195 are slidingly mounted for lengthwise movement in ahorizontal plane. As most clearly shown in Fig, 9, these hammers slidein ways 203, formed in a bar 204. The bar 204 is supported by beingsecured against the under side of a tie rod 205 which connects the intermediate frame members 65 and 66. The operative stroke of each hammeris accomplished by a separate spring, as 206 (Fig. 2) As shown the sprin206 are formed from flat strip metal folded to substantially a U- shape.Each spring 206 reacts between the forward edge of the tie rod 205 and ashoulder 207 formed on the corresponding hammer.

The retraction of the printing hammers 195 is accomplished'by a cam 208(Fi s. 2 and 9). This cam is fixed upon the s aft 173 and is preferablymade wide enough to be operable upon all of the hammers of the set. Asshown, each hammer 195 is pro vided with a downturned end portion 212which is so formed as to provide a shoulder 213 for engagement with thecam 208. A recessed portion 214 extending entirely across the face ofthe cam 208 provides for the release of all of the hammers 195 atthesame time,

As it is preferable that zeros should not be printed at the left of thefirst figure of any item or total, provision is made for restraining themovement of the hammers 194 and 195 which are in alinement with thewheel scgn'ient, as 128 from which no printing is to be accomplished.For this .pur pose the downturned end portion 212 of each hammer 195 isextended beyond the cam engaging shoulder 213 to a position in which itis normally alined with the upturned hooked end portion 215 of aswingi'n lever 216. A separate one of the levers 21 (Fig; 9) is providedfor coiiperating with-eat: hammer 195. These levers are piyotallysupported upon a rod 217 which extends between and is carried hi theintermediate in: me members 65, 66. spring 218 is provided foryieldingly supporting the up turned hooked end portion 215 of each leverin elevated position. As shown, each spring 218 has one end connected atie rod 219 which extends between thejintermediate frame members 65, 66,:belowthe rod 217. The other end of each spring 218 is connected with aforwardly directed arm 220 of one of the corresponding leversl216.

When printing is to be accomplished from a type character, as 196 of anyone of the wheel segments 128 to 135, the corresponding lever 216 isdepressed to free the'downturned rear end portion 212 of thecorresponding hammer 195. In the arrangement shown, printing is alwaysaccomplished from the type of: any wheel segment 128 to 135 which hasbeen rotated by the forward movement of the actuatin arm 148.Furthermore, when but one column of figures is to be printed, zerosshould be printed from those wheel segments which have not been movedbut which are located at the right of any wheel segment which has beenmoved, as viewed in Fig. 3. A. cam shoulder 221, formed on each wheelsegment 128 to 135, serves for depressing the corresponding lever .216against the efi'ort of its spring 218 to release the correspondinghammers 194 and 195 when the wheel segment is rotated. As shown, eachlever 216 1s provided with an upstanding arm 222 and this arm carries aroller 223 for engagement with the cam shoulder 221 of the correspondingwheel segment 128 to 135*,

The printin of zeros against the platen 71 from wheel segments 128 to135 which have not been rotated, is accomplished by securing a rigidleaf 224 or 225 against the under side of each of the levers 216 in suchmanner that it will extend beneath the next adjacent lever to the right,as viewed in Fig. 9. When but one column of fi res is to be printed,depression of any ever 216 accordingly serves to depress all of theremaining evers to the left, as viewed in Fig. 9, to permit theoperation of the corresponding hammers 194 or 195.

To permit the printing of more than one column of figlures provisionis.made for interrupting t e transmission 'of movement between the levers216 throu h the overlapping leaves 224, 225. Ass own, one of thefleaves,as 225, is downwardly o'flset and s onl actuated upon the depression of.the next. adjacent lever 216 to the right, as viewed in Fig. 9, throughan intermediate movable block 226. The action of the levers 216 at oneside of the leafv224 to depress the levers which are at its other side,is ac cordingly interrupted by withdrawin i the movable block 226 frombetween the ownwardly ofi'set portion of said leaf and the underside ofthe next adjacent lever to the right (Fig. 9). To this end the movableblock 226 has a socketed'rear end portion 227 and is supported by thetelescopic engagemeut of this socketed end portion with the upper endof.an upright arm 228 of a bell crank lever 229. Ilhe bell crank lever229 is'pivotally supported upon the floor plate 51 of the case 50,. Theother arm, as 230, .of -this lever serves as a handle for withdrawingthe block 226 and extends librizontally rearwardv through an opening 231in the .wall 53 to a conveniently accessible position in rear of thecase. If desired, the arm 230 of the bell crank lever 229 may beconstructed to yieldingly pass over a shoulder. 232 formed in the marginof the opening 231, in its downward movement to be engaged with saidshoulder for holding the movable block 226 in retracted position untilreleased.

Th printing hammers 194 (Fig. 2) are swingingly mounted. As shown theyare pivotally supported in alinement upon a tie rod 233 which extendsbetween the intermediate frame members 65, 66, just above the adjacentrim sections 137 of the wheel segments 128 to 135. Springs 234 areprovided for swinging these hammers in the direction of their operativemovement. The hammers 194 are moved in the other direction by a cam 235.The cam 235 is mounted upon the cam shaft 17 5 and is of sufficientwidth to be operable upon all of the hammers 194. The springs 234 haveone end connected with a rod 236, Fig. 3, which rejeets laterally inwardfrom the interme iate frame 65 in the direction of but not reach ing tothe intermediate frame member 66. The other end of each spring 234 isoperatively connected with a forwardly projecting arm 237 of one of thehammers 194. Each hammer 194 is also provided with an upstanding arm 238so formed as to provide a shoulder 239 for engagement with-the cam 23-5and to extend upwardly and rearwardly beyond said shoulder to a positionabove said ram shaft 175. An arm. as 240, formed integral with eachlever 216 extends for wardly therefrom and is normally located inalinement with the end of the upstanding arm 238 of one of the hammers194. The swinging of the levers 216 accordingly serves to'control theoperation of the hammers 194 in the same manner as the hammers 195.

To provide against the printing of zeros from the type 127, at the leftof the first number of any item or total, the zero characters, as 144 ofthe type are each movably i. mounted upon the rim section 139 of thecorresponding wheel segment 128 to 135 and their position is alsocontrolled by the swinging of the levers 216. As shown, each zerocharacter, as 144 is formed with a laterally offset base portion 246,which is pivotally secured against the side of the corresponding rimsection 139, as at 247 (Fig 13). A spring 241 reacts upon each. of thesetype characters to withhold it from the printing position. A set of hellcrank levers 242 are pivotally mounted in alinement with the centralshaft 136 and each serves to advance one of the zero type characters 144when it is required that it should print. As shown one of the arms, as243, of each bell crank lever 242 is movable against the under side ofthe corresponding zero character 144. The other arm, as 244 of each bellcrank lever 242 is engaged with the arm 240 of one of the levers 216. Toinsure that movement of each lever 216 in both directions will beimparted to the bell crank lever 242, the arm 240 is provided with afinger 245 which projects upwardly over the adjacent end of the arm 244of the bell crank lever 242.

The printing movement of the platen 72 toward the type 127 isaccomplished by one ofthe cams. as 248, of a cam block 260 (Figs. 9 and16). This cam block is fixed upon the shaft 173 at one side of theintermediate frame member 65. The cam 248 is operable against a camroller 249 for shifting a link 250 upon which the roller 249 is mounted.The link 250 is in turn operativelv connected with a crank arm 251 ofthe rock shaft 76. For guiding the movement of the link 2550 its forwardend is bifurcated as at 252 (Fig. 16) and this bifurcated end of thelink straddles the shank of a headed stud 253 which is formed upon theend of the cam block 260. A spring 254 reacting between the crank arm251, and a fixed part of the frame. as the standard 67, serves forholding the roller 249 in engagement with the cam 248 and accomplishingthe return movement of the platen 72 away from the ty e 127.

otation of the platen 72 for advancing the strip of paper. as 70,thereover, may be accomplished upon the return of the platen to itsnormal position of rest illustrated m Fig. 16. As s own, a bell cranklever 255 is pivotally secured against the side of one of the crankarms, as 74, which supports the platen. One arm of this bell crank levercarries a spring pawl 256 for coiiperating with th feeding ratchet 257of the platen. The other arm of the bell crank lever 255 cotiperateswith a fixed cam lug 258 which is formed integral with the standard 67above the rock shaft 76. Upon the forward movement of the platen 72toward the type 127 the bell crank lever 255 becomes disengaged from thecam lug 258 and the pawl 256 is retracted. As the platen 72 reaches thelimit of its return movement, the bell crank lever 255 is again engagedwith the earn 258, and the pawl 256 is advanced for rotating the platen.

The rotation of the platen 71 for feeding the strip of paper, as 69thereover. is conveniently accomplished by a cam 259. As shown. this camis mounted on the shaft 173. as by being formed upon the same cam block260 with the cam 248. The cam 259 operates against one end of a lever261 which is pivotally secured against one side of the standard 67. Aspring pawl 262 is mounted upon the other end of the lever 261 forcooperating with the feeding ratchet 263 of the platen 71. A spring 264reacts between the lever 261 and the standard 67 for withdrawing thepawl 62 from enga ement with the feeding ratchet 263, and ho d ing thelever in engagement with the cam 259.

The yielding gear teeth or pawls 142 with which each wheel segment 128to 135 is provided serve for rotating the item wheels 8 and theaccumulator wheels 79 (Fig. 2). The pawls 142 of each set are pivotallysecured against the rim section 140 of the corresponding wheel segment.as by set screws 265. The movement of each pawl in one direction islimited by a stop pin 266 which is fixed in the rim section 140 adjacentthe pawl. The pawls are yieldingly held against these stop pins, as bymeans of springs 267 which react between each two adjacent pawls.

The item wheels 78 are rotated in one direction only by thecorresponding yielding gear teeth or pawls 142. A spring 268 (Fig. 12)is accordingly employed for rotating each of these wheels in theopposite direction. As shown, the item wheels 78 are arranged inalinement upon a fixed shaft 269 which extendsbetween the side frames63. 64, adjacent the sight openings 80 in the front wall 52 of the case.Spacing collars 270. alternating with the item wheels 78. are fixed uponthe shaft 269. Coiiperating stop lugs 271 and 272. Fig. 11, formed oneach item wheel 78 and the adjacent spacing collar 270 serve to preventfurther rotation of the item wheels 78 in one direction, when the herocharacters, as .273, are in register with the sight openings 80; Eachspring 268 is coiled about the hub of the corresponding item wheel 78and reacts between the item wheel and the adjacent spacing collar 270for turningthe'whecl to bring the stop lug 271 against the stop lug 272.

The accumulator wheels 79 are. loosely mounted upon a shaft 277 whichextends hetween the side frames 6.3. 64, adjacent the sight openings81in the front wall 52 of the case. Each of these wheels is convenientlymade of such size as to comprise two sets of numerals 274, .275, Fig. 5,and a corresponding number of gear teeth 276 Fig. f6. Carrying mechanismfor advancing each accumulator wheel .79 through an an lar distancecorres onding tothe'spacing of'its gear teeth 276, when the next wheelto the right, as viewed inrFig. 5, completes a half revolution ofmovement, is accordingly required. As shown, star wheels 278, onemeshing with the gear teeth 276. of each of thd accumulator wheels 79except the last one to the right, as viewed in Fig. 5, are employed. Thesc star wheels are loosely mounted upon a shaft27'9 which has itsopposite ends supported in bracket lugs 280 f( rmed on the side framesca ana 64. Each star wheel 278 is made wide enough "to engage with thegear teeth 276 of thejcorrespending Wheel 79 and to project beyond theadjacent side of the same. 'Afpair of diametrically opposed studs281 and282 are fixed in each wheel 79, except the, last one to the left, asviewed in Fig? 5, for engaging the adjacent star wheel 279 at each halfrevolution of the accumulator wheel in which they are respectivelymounted.

The yielding gear teeth 142 with which the wheel segments 128 to 135 aresupplied, provide that the item wheels 78 and accumulator wheels 79 areturned during the rotation of the several wheel segments" to the left,as viewe in Fig. 2. When the accumulator wheels are supplied with theform of carrying mechanism shown, is required that they be rotatedsuccessively beginning at the right, as viewed in Fig. 5. As theactuating arm 1&8 serves to simultaneously advance all'of the wheelsegments 128 to 135 upon which pins 141 have been depressed, it isaccordingly provided that these wheel segments are returned one at atime.

A cam shaft 283 having a plurality of cam arms 2 84 serves foreffecting; the return movement of the wheel segments 128 to 135. The camarms 284" are arranged along the shaft 283 "and are angularly spacedapart thereon for successive engagement with the wheel segments 128 to135. The cam shaft 283 preferably extends from the intermediate frame 65through the intermediate frame 68 to the side frame 64 and is journaledin all three of these frame members.

For rotating the cam shaft 283 a pinion 285 is mounted thereon and thispinion meshes with an intermediate gear 286. The intermediate gear 286is rotatably supported against the side frame member 64 and meshes witha driving gear 287. This driving gear 287 is rotated through one fourthof a revolution at each movement of the operating handle 82, such motionoccurring near the completion of the forward movement of the handle. Asshown, the driving gear 287 is fixed upon a shaft 288. This shaftextends between the intermediate frame 68 and adjacent side frame 64 andthe two ends of the shaft are journaled in said frames.

Motion is communicated to the shaft 288 and driving gear 287 from thecam shaft 175. For this purpose a star wheel mechanism, illustrated inFig. 7, is employed. This star wheel mechanism includes a pair of disks289 and 290 of difi'erent size. These disks are preferably formedintegral and they are mounted'on the cam shaft 175. The star wheel, as291, is mounted on the shaft 288 and has a plurality of radial sockets292 and intermediate curved surfaces 293. A stud 294 projects laterallyfrom the larger one, as 289,015 the two disks 289, 290 for entering thesocket 292 of the star wheel 291 to turn the same. The rim of the"smaller disk290 is normally engaged with one of the curved surfaces 293of the star wheel 291 t-o hold the same against movement but is providedwitha notch 295 to permit the turning of the star wheel during that partof each revolution of the shaft 175 when the stud 294 is engaged withone of the sockets 292.

The clearing of the item wheels 78 preferably occursat the beginning ofeach operative movement of the handle 82. For this purpose it is onlynecessary to release the pawls 142 from engagement with the item wheels78, the rotation of the wheels being then accomplished by the springs268. The release of the pawls 14.2 is effected by means of shoes 298,one operatin against the rear end portions of the paw s 142 of eachwheel segment 128 to 135 in line with the corresponding item wheel 78.As shown a crank shaft 296 (Fig. 4) extends between the side frames 63,64, over the item wheels 78. This crank shaft carries a plurality ofcrank arms 297 one of which extends inwardly adjacent the rim section140 of each of the wheel segments 128 to 135. Each of the crank arms 297carries one of the shoes 298 upon its free end. A cam 299 carried by thecam shaft 175 adjacent the remote end of said shaft from the cam 182serves to swing the crankshaft 296 for advancing the shoes 298. Asshown, a three-armed lever 300 is pivotally mounted on the shaft 136adjacent the cam 299. One arm of this lever is supplied with a camroller 301 for engagement with said cam. Another arm of the lever 300 isconnected with a crank arm 302 of the crank shaft 296, as by a link 303.A projection 304- (Fig. 10) formed on the cam 299 serves for swingingthe lever 300 at the beginning of each rotation of the cam shaft 175.

Preferably the same movement of the three-armed lever 300 which permitsthe clearing of the item wheels 78 also serves to permit the restorationof the numeral keys 83. As shown, a sliding bar 305 eX- tendstransversely below the rear end por tion of the cover plate 56 forsimultaneously rotating all of the lockin plates 108, Fig. 8.

The bar 305 is provided with an upstanding lug 306 for engaging each ofthe locking plates 108. The bar 305 is conveniently sup orted by havingits opposite ends slidingy connected with bracket lugs, as 307, whichrise from the supplemental plate 112. An arm 308 projects downwardlyfrom the sliding bar 305 through a slotted opening in the supplementalplate 112 and into the path of a cam 309 which is carried by anoscillating bar 310. The oscillating bar 310 can tends transverselythrough the machine over the rear end portions of the pin restoringlevers 158 (Fig. 2). The opposite? ends of the oscillating bar 310 areconnected to a rock shaft 311, as by crank arms 312. The rock shaft isrotated by movement of the three-armed lever 300 (Fig. 10) and a link313 which serves for connecting one of the crank arms 312 with one ofthe arms of the lever 300.

\Vhile an upward movement of the oscillating bar 310 serves to permitthe restoration of the numeral keys 83, a downward movement of this samebar serves to swing the levers 158 for restoring the pins 141. This lastmentioned movement of the oscillating bar 310 normally occurs just priorto the completion of each operative movement of the handle 82 and isconveniently accomplished by a spring 314 (Fig. 10). The spring 314 actsupon the lever 300 to hold the roller 301 against the cam 299. Adepression 315, formed in the rim of the cam 299, permits the sprin 314to swing the lever 300 through a su cient distance for effooting therestoration of the pins 141.

When it is desired that an item once set up by the numeral keys 83should be repeated during successive movements of the operating handle82, the restoration of the pins 141 is prevented. This is accomplishedby the depression of the repeating key 94, (Fig. 1). Downward movementof the stem 101 of this key serves to swing a stop arm 316 (Fig. 10)into the path of a lug 317 formed on one of the arms of the lever 300 toprevent the movement of the lever 300 by the spring 314 for the entranceof the cam roller 301 into the depression 315 of the cam.

The stop arm 316 is preferably constructed in. the form of one of thecrank arms of a tubular rock shaft 316*. This rock shaft is pivotallysupported upon a stud 318 which projects inwardly from the adjacent sideframe 63. When so constructed a bracket lug 319 formed on the tubularrock shaft 316 serves to provide an anchor for the spring 314. Thisbracket lug is so positioned on the rock shaft 316 that the spring 314serves the additional function of normally holding the stop arm 316 outof the path of the lug 317. A link 320 extends forwardly from anothercrank arm, as 318" of the rock shaft 316*. The forward end of this linkis connected with one of the crank arms 321 of a second tubular rockshaft 321. This rock shaft is also supported upon a stud, as 322 whichprojects inwardly from the side frame 63. A lug 323, carried by anothercrank arm, as 322' of the rock shaft 321, extends into the path of a cam324. This cam is carried by the stem 101 of the repeating key 94.

A latch mechanism is preferably provided for holding the key 94 indepressed position. As shown, a spring advanced latch bolt 325 slidinglyextends through the front wall 52 of the case and is provided with apush button 326 at its forward end. The rear end of the latch bolt 325is formed into an eye 327 for receiving the key stem 101 and one wall ofthis eye is made chamfered to form a detent 328 for engagement with anotch 329, in the stem 101. In order that the pins 141 may beautomatically restored after any operation of the machine has beenrepeated the desired number of times, the push button 326 is preferablydepressed to release the key 94 before swinging the handle 83 for thelast one of said operations. Should the depression of the push button326 be omitted, and the repetition of operations be thereby completedwithout restoring the depressed pins 141, it will be necessary todepress the blank key 93 which is associated each subtraction pinion isso positioned as to be engaged with the gear teeth 276 of thecorresponding accumulator wheel 79 at all times, but is normally locatedat one side of the path of movement of the yielding ear teeth or pawls142 of the corresponcing wheel segment 128 to 135 To this end, thesubtraction pinions 332 are mounted in alinement upon a longitudinallymovable shaft 333. A pair of collars 334, 335, fixed uponthe shaft 333adjacent its Opposite ends, serve to insure the axial movement of thepinions 332 with the shaft in both directions. The shaft 333 extendsbetween and is slidingly journaled in the side frames 63 and 64. One ofthe collars, as 335, provided with an annular groove 336, and thisgroove is entered by one of the crank arm's, as 337, of a rockshaft'338. The rock shaft 338 is supported by being journaled in abracket 339, '(Fig. 2), which is secured against the side frame 64.Another crank arm, as 340, ofthe'rock shaft 338 ex tends into the pathof a stud 341 which is mounted on the stem 104 of the subtraction key97. 2 Depression of the subtraction key 97 accordingly serves to movethe shaft 333 in one direction. A spring 342 reacts between the crankarm 337 and the side frame 64 for moving the shaft 333 in the otherdirection. I

For holding the accumulator wheels 79 against accidental movement, thesubtractionpinions 332 are engaged by a holding bar 343 Fig. 2). Thisbar extends from side to si e of the machine below the shaft 333 and issupported at its opposite ends upon a pair of crank arms 3'44 which are'fixed upon a tubular rock shaft 345,, and project forwardly therefrom.The tubular :rock shaft 345is sleeved over a crank shaft 346 whichextends from side to side of the machine and has its opposite endsjournaled in the side frame 63 and 64. In addition I to the forwardlyextending crank arms 344,

the tubular rock shaft 345 is also provided with a rearwardly. extendingcrank arm 347 (Fig. 3'). This'last mentioned crank arm is supplied witha cam roller 348 for engagement with a cam 349. The cam 349 is shiftablymounted upon the cam shaft 176. Ithas aplurality of elevated portions350, 351, 352 and 353, all of which are provided for engagement .Withthe cam roller 348 to release the holding bar 343 from engagement withthe subtraction pinions 332 in the different positions of the cam. Inthe ordinary operation of the machine, as when the sum of the severalitems is to appear upon the accumulator wheels 79, the cam349 occupiesthe position illustrated in Fig. 3. In position of the cam, its elevatedportion 350is engaged with the cam roller 348 during the latter part ofeach rotation of the cam shaft'l76. The holding bar 343 is theregestat-o by released from engagement with the sub traction pinions 332 topermit the rotation of the accumulator wheels 79 by the pawls 142 onlyduring the return movement of the wheel segments 128 to 135*.

In the event an item is to be subtracted, the subtraction wheels 332 areshifted into the path of movement of the pawls 142 of the correspondingWheel segments 128 to 135 and the paWls are depressed as they pass theaccumulator wheels 7 9, during the return movement of the wheelsegments. This depression of the pawls 142 is accomphshed through theuse of a plurality of shoes 354 (Fig. 2), one for engaging the rear endportions of the pawls of each of the wheel segments 128 to 135*. Theseshoes are supported in alinement upon a bar 355, and they are brought tooperative posi tlO'Il by moving the bar forwardly. As shown, the bar 355is carried by a pair of crank arms 356. These crank arms are fixed uponthe crank shaft 346, beyond the ends of the tubular rock shaft 345 bywhich the crank shaft 346 is inclosed throughout the greater portion ofits length. An arm 35?,

ormed integral with one of the crank arms 366, extends rearwardlytherefrom and carmes a cam roller 358 which also coiiperates wlth thecam 349. The cam 349 is provided with two elevated portions 359 and 360for engaging the cam roller 358 in different positions of the cam.

The shifting of the cam 349 on the cam shaft 176 is accomplished by thedepression of any one of the controllin keys 95, 96, 97, but indifferent amounts. or thispurpose a shipper bar 361 (Fig. 5), isslidingly supported to extend in rear of the stems 102, 103, 104 of saidkeys. This shipper bar carries three studs 362, 363 and 364, each ofwhich extends into the path of one of three Wing cams 35.6, 366 and 367,which are mounted upon the key stems 102, 103 and 104 respectively. Onesupport for the shipper bar 361 is provided by a gib 368 which connectswith an upright part, as 369, of the bracket plate 106. The shipper bar361 IS SllSO supported by beingslidingly engaged w th the side frame 64.The motion of the sh pper bar 361 is communicated to the cam 349 bymeans of a yoke 370. This yoke is formed upon one end of a shipper'bar361 and 1s engaged With an annular groove 371 formed in the hub of thecam.

A latch mechanism is preferably provided for holding any one of thecontrolling keys 95, 96, 97 which has been depressed, inits loweredposition until the operating handle 32 reaches the endof its forwardmovement.

For this purpose a plurality of pawls372 are provided.

These pawls are rigidly mounted on rock shaft37 3, randrarenormallyadvanceil by a spring 377 which operates to rotate the shaft inone direction. Each pawl 372 is adapted to enter either one of twonotches 374, 375, formed in the stem 102, 103, 104 of one of thecontrolling keys 95, 96, 97. The rock shaft 373 is supported by beingjournaled in the upright part 369 of the bracket plate 106 and in asecond bracket arm 376 which rises from this plate. For effecting theretraction of pawls at the end of the forward movement of the operatinghandle 82, the rock shaft 373 is provided with a crank arm 378 and alink 379 extends rearwardly therefrom. The rear end of the link 379 isconnected with a swinging arm 380, and a pin 380 (Fig. 3) projectslaterally from this arm under the gear segment 177. A lug 381 (Fig. 2),formed on the gear segment 177, engages the pin 389 to swing the arm 380rearwardly, as the gear segment 177 reaches the limit of its travel. Theswinging arm 380 is supported by being pivotally secured against theside frame 64. hen the subtraction key 97 is depressed, the cam 349 isshifted to a position in which its elevated portions and 360 are alinedwith the cam rollers 348 and 358, respectively. The cam 349 accordinglyserves to effect the depression of the holding bar 343, and the advanceof the shoe 354 during the return movement of the wheel segments 128 to135 The depression of the subtraction key 97 having also served to shiftthe subtraction wheels 332 to a position in which they are alined withthe pawls 142 of the wheel segment 128 to 135, each accumulator wheel 79is rotated in accordance with the movement of the corresponding wheelsegment but in a reverse direction with reference to the movement ofthese wheels when they are directly engaged by the pawls 142.

When a total or a sub-total is to be printed against the platens 58, 71and 72, (or shown at the sight openings 80) none of the numeral keys 83is depressed. The movement of the wheel segments 128 to 135* isaccordingly accomplished, not by the engagement of the actuating arm 148with the pins 141, but by the clearing of the accumulator wheels 79, asthese wheels are rotated to positions in which they display zeros at thesight openings 81. The clearing of the accumulator wheels 79 isaccomplished by the engagement of a gear segment 382 (Fig. 4) with agear 383 which is fixed upon the shaft 277. The gear segment 382 isformed upon a crank arm 384 which rotates with the shaft 136, as bybeing formed integral with one of the crank arms, as 161 upon which theactuating arm 148 is mounted. The gear 383 is so positioned on the shaft277 as to be normally out of alinement with the gear segment 382.Provision is accordingly made for im arting an endwise movement to theshaft 2 7 when a total or a subtotal is to be printed. For

this purpose, the hub of the gear 383 is provided with an annular groove385 and one of the crank arms, as 386, of a rock shaft 387 is engagedwith this groove. The rock shaft 387 is supported by being extendedlongitudinally through a part of the side frame 64. Another crank arm,as 388, of the rock shaft 387 extends into the path of studs 389 and 390which are carried by the stems 102 and 103 of the total and subtotalkeys 95, 96, respectively.

At each engagement of the gear 383 with the gear segment 382, the shaft277 is rotated only through a sufiicient distance to bring one of thezero characters of each of the accumulator wheels 79 into register withthe corresponding si 'ht opening 81. This motion of the shaft 2%7 iscommunicated to the several accumulator wheels by providing the shaftwith pins 391 (Fig. 5) which come into engagement with studs, as 392,fixed in the accumulator wheels during the rotation of the shaft. Theendwise movement of the shaft 277 to the right, as viewed in Fig. 5, ispreferably accomplished by a spring, as 393. This spring is shown asbeing coiled about the shaft and reacting between the hub of one of theaccumulator wheels 79 and a disk 394 serves to carry the pins 391 whichengage the studs 392 of the adjacent accumulator wheel.

hen a total is printed, the accumulator wheels 79 are allowed to remainin the cleared position. It is accordingly provided that the pawls 142of the wheel seg ments 128 to 135, are depressed, as they pass thecorresponding accumulator wheels, during the return movement of thewheel segments. For this purpose, the wing cam 365 (Fig. 5) serves toshift the cam 349 to a position in which its elevated portion 359 (Fig.3) is alined with the cam roller 358 for advancing the shoes 354 (Fig.2) during the latter part of the rotation of the cam. In this operationof the machine. the rotation of the accumulator wheels 79 occurs duringthedownward movement of the gear segment 382 (Fig. 4) and is notthereafter to be permitted. The cam roller 358 (Fig. 3) is accordinglyengaged by an elevated portion 352 of the cam 349 for depressing theholder bar 343 only during the ea rly part of the rotation of the cam.

\Vhen a subtotal is to be printed, the accumulator wheels 79 are clearedby the engagement of the gear 383 with the gear segment 382 (Fig. 4), inthe same manner as when a total is to be printed, but in this operationthe accumulator wheels are to be returned to their original positionduring the return movement of the wheel segments 128 to 135*. The wingcam 366 (Fig. 5) which is depressed by the depression of the subtotalkey 96, accordingly serves to shift the cam 349 (Fig. 3) only to aposition in which t'he elevated portion 351 of :the'cam is aiined withthe cam roller 348. The elevated portion 351 extends almost entirelyaround the cam 349 and thereby serves to depress the holder bar 3&3 topermit the rotation of the accumulator wheels 7 9 throughoutsubstantially the whole iperiod ingthe cam roller 358 when occupyingthat position'to which it is moved by the wing cam 366 (Fig. 5) of thesub-total key. The rigid connection'of all of the pawls 312 with theshaft 373 provides that if one of the con- "trolling keys 95, 96 or 97is improperly depressed its restoration will be permitted by thedepression ofanother one of said keys.

\I claim asimy invention,-

11. In acalculating machine, in combina tion, an oscillatable numberpositioning r-member, a set of numbers positioned there- 'by, anaccumulator, driving'means positively goperable upon the numberpositioning memher to 'move it through variable distances, other drivingmeans operable upon the accumulator for :moving it to a definiteposition and connection betweenthe'number positioningmember andtheaccumulator operable to communicate motion from either one of said.partsto the other.

2. Ina calculating machine,;in combination, a number positioning wheel,a set of numbers positioned thereby, an accumulator wheel, driving meanspositively operable upon the number positioning wheel for turning itthrough variable angulardistances'in one direction, means for turningthe number positioning wheel through like distances in the otherdirection, other driving means operable upon the accumulator wheel forturning it to a definite angular position and connection between thesaid two wheels operable to communicate motion from the accumulatorwheel toithe .numberipositioning wheel and from the number positioningwheel \to the accumulator wheel in one direction only.

3. In a calculating machine, in combination, a number positioning wheel,a set of numbers positioned thereby, an accumulator wheel, means foroscillatingthe'numberzpo- 'sitioning wheel, connection between saidwheels positively operable for communicating motionfrom one'to'the otherin one direction but yielding when the number positioning wheel is movedin the other direction by the saidoscillatingmeans, and driving meansfor reverselyturning the accumulator wheel with reference to thedirection in which itis turnediby the means for oscillating the numberpositioningwheel.

4. In a calculating machine, {in combination, an oscillatin numberpositioning wheel, a set of num :ers positioned thereby, an accumulatorwheel, driving means ,positively operable upon the number apositionin'gwheel for advancingthe number positioning wheel, means forreturningthenumber positioning Wheel, connection between said whcelsoperable only to CGIHIDHIllCflbB'IHDhlOB from the number positioningwheel to the accumulator wheel during the return movement of the numberpositioning Wheel and t'rom the accumulator wheel to the snumberpositioning Wheel for advancing the number positioning wheel, and otherdriving means operable upon the accumulator wheel for turning the samein the direction for advancing the number positioning wheel.

5. In a calculating machine, in combination, an oscillatin numberpositioning wheel, a set of num ers positioned thereby, an accumulatorwheel, driving means-positively operable upon the number positioningwheel for advancing the numberrpositioning wheel, means for returningthe number positioning wheel, connection between said wheelsoperable-only tocommunicate motion from the number positioning wheel tothe accumulator wheel during the return move 'ment of the numberpositioning wheel and from the accumulator wheel to the numberpositioning wheel for advancing the number positioning wheel, otherdriving means means operable upon the accumulator wheel for turning thesame in the direction for advancing the :number positioning wheel, andmeans for releasing the said connection between the wheels during thereturn movement of the {number ,positioning wheel nextlfollowingitsadvanceby the said rotatinn of the accumulator wheel.

6. In a calculatingmachine, in combination, a movable type S8le'CtlI1gm8mbeI',"B fixed stop located adjacent the path of movementof said typeselecting member, an actuating member-1 movable tow ard the stop, and aset'of studs carried by thesaid type selecting member (and movablethereon ato I enter thepath, of movementiofthe actuating memberatidiiferent distaneesfrom the stop.

7. In a calculating machine, incombination, a movable set of numbercharacters, meansforrmoving thesetof number-characters'in variableamounts and forrtator'mg the set of number characters after "eachmovement, means upon which the restoring JIlOVBIRQIItS of the set'ofnumber characters are accumulated, means for restoring the accumulatingmeans, ineans [for transmitting 'the restoring movement of theaccumulating means to the said set oflnumbercharacters, and means forinterrupting the transmission of the restoring ,movement 'of .the saidset of number characters to thenccumnhting

